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Learners observe and conduct experiments demonstrating the different properties of hot and cold materials.

This three-part activity consists of an activity that groups of learners develop themselves, a given procedure, and an optional demonstration.

Learners observe a sealed test tube containing a small amount of solid stearic acid.

Learners model the ocean currents that carry hot water from the tropics to northern latitudes.

Learners see convection currents in action in this highly visual demonstration. Sealed bags of colored hot or cold water are immersed in tanks of water.

In this quick activity (located on page 2 of the PDF under GPS: Balloon Fiesta Activity), learners will see the effects of convection and understand what makes hot air balloons rise.

Learners observe a flask with a balloon attached over the mouth and inverted inside the flask.

In a class demonstration, learners observe a simple water cycle model to better understand its role in pollutant transport.

This is an activity/demo in which learners are exposed to the difference bewteen hydrophobic surfaces (water repelling) and hydrophilic surfaces (water loving).

Experiment with liquids of different densities and create liquid layers. For example, oil and water have different densities: oil floats on water because it is less dense than water.

In this demonstration, learners observe vinegar and baking soda reacting to form carbon dioxide (CO2) gas.

In this activity, learners use a toaster to generate wind and compare the appliance's heat source to Jupiter's own hot interior. Learners discover that convection drives wind on Jupiter and on Earth.

In this activity, learners make self-assembled polymer spheres.

This kinesthetic science demonstration introduces learners to four states of matter: solid, liquid, gas, and plasma.

Learners investigate how the temperature of water affects its density.

Learners develop an understanding of air pressure in two different activities.